Micropower double ended limit detector
Posted on Apr 17, 2012
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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This tiny pH-meter is very tiny: 11cm2 including the PSU circuit! I built it for the College...
A Direct Injection (or DI) box is a very handy piece of equipment for any public address rig or...
The design presented here works by applying a 50kHz, 200mV square wave to the capacitor under...
The tester gives an audible indication, making it unnecessary for the user to look directly at...
This circuit adapts a frequency counter to measure intervals. It was originally used as a...
I initially designed these circuits for a friend who had muscle problems and while he says they...
In general, the transceiver switches the 4-element 1500 ohm xtal BPF ends between the inputs and...
This is a simple circuit which I built to one of my audio amplifier projects to control the...
When you want to enlarge sound signal from all source before costume amplify. Usual use Pre...
I decided to throw together a schematic of how the OEM AUX switch should be wired, and print it...
Why would you want to use the Arduino library with another IDE It helps organize your code...
The I/O Filter Wildcard provides a convenient place for prototyping analog circuitry or for...
Collecting and storing experimental data is a common challenge for hobbyists. A popular approach...
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